Detachable dust-guard.



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E. MORRIS. DETACHABLE DUST GUARD.

APPLICATION F|LEDJUNE141 1915- I I 1,179,660. Patented Feb. 8, 1916.

mafiam @ZWW vmwv necessary to space apart the two sliding glass EDMUND MORRIS, GRAND RAPIDS, MICHIGAN, ASSIGNOR TO WILMAR'IH SHOW CASE COMPANY, OF GRAND RAPIDS, MICHIGAN, A CORPORATION OF MICHIGAN.

DETACHABLE DUST-GUARD;

' Specification of Letters Patent.

Application filed June 1 1915. Serial No. 34,129.

To all whom it may concern:

Be it known that I, EDMUND MORRIS, a

citizen of the United States of America, re-

siding at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Detachable Dust-Guards; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

y invention relates to improvements in detachable dust guardsfor the doors or closures of show cases and like structures, and more particularly for such doors or closures when the same are of the sliding type, and particularly when the same are made from glass plates and without frames.

In the present preferred form of construction, show cases are provided with doors or closures made from glass plates, and such a construction is of great advantage in so called, wall show cases,that is, show cases which are adapted to stand against a wall and which are provided with front openings for gaining access to the interior thereof. Such types of show cases are now frequently provided with sliding doors or closures made entirely of glass plates, that is, no frames are used in connection with the glass plates. In such a construction it has been found doors or closures so that when they are slid 1n their respective groove trackstheir adacent surfaces will not touch each other.-

This is necessaryto prevent scratching or abrasion of said adjacent surfaces, such scratching or abrasion having been found to occur if the surfaces of such glass plates touch each other when being moved to and fro. To accomplish such spacing apart of said doors or closures the groove in which the same are adapted to slide is constructed sutliciently wide so that a dividing strip or spacing member is fixed in the center of said groove, thus forming two separate, parallel, adjacent grooves in one of which one of said doors or closures is slidably mounted, the other of said doors or closures being likewise slidably mounted in the otherof said grooves. Such a construction leaves an opening between the over lapping ends of the two doors or closures, and such an opening is a constant menace by permitting dust to enterthe case and settle on and soil and injure the goods on display therein.

To provide a means for closing the said opening between such doors or closures, is the purpose of my present invention.

It has been found impractical to permanently attach a dust guard to such glass plate doors or closures, for the reason that in cleaning such doors or closures a dust guard which would be permanently attached by being cemented to the glass plates become quickly soiled, and if liquid cleaners are used, very quickly loosened. It has further been found impractical to drill holes in such glass plate doors or closures for the purpose of attaching dust guards, because of the great liability of easy and frequent breakage that occurs, for that, for such a dust guard to be effective it is required to be placed close to the edge of the door or closure, and it has been found that to drill holes close to the edge of aheavy glass plate it is almost sure to break on a line with such holes, from even a light jar or from internal strains.

By utilizing my present invention I am able to produce an efficient dust guard, for use in the before described structures, which may be easily and quickly attached or removed without the use of tools or cement, in fact, a detachable device, which is eflicient and inexpensive to construct, as will more fully appear by reference to the accompany ing drawing in which:

Figure 1, shows an elevation of a portion of the frame work of a show case with the overlapping ends of the glass plate doors or closures mounted in grooves in the frame work in which they are adapted to slide, with my improved form of detachable dust guard mounted in operative position on the outer or right hand door or closure; Fig. 2, is a perspective of a portion of a length of my improved construction of detachable dust guard; Fig. 3, is a transverse section of the same taken on the line 33, of Fig. 1; and Fig. 4, is'a transverse section of the two over lapping glass plate doors or closures showing their relative spaced apart positions, with my improved dust guard detachably mounted on one of the said doors or closures in operative position, said figure being taken on the line 4ll, of Fig. 1.

Like numerals refer to like parts in all i the figures.

Patented Feb. 8, 1916. i

1, are U shaped spring clamps having suitably dimensioned openings so as to adapt the same to be sprung over the end of the glass plate doors or closures 6, or 7, (see Fig. 4). The flexibly yielding member 5,

'(for which I prefer to use felt), is fixed position in grooves in the upper and lower respectively, of the frame rails 8, and 9, work of ashow thus assembled, proved form of the end of the outside door or closure by means of the spring clamps 1, as most clearly shown in Fig. a, and when so placed the spring clamps'l, will holdthesaxne securely in such operative position, and yet the said dust guard may be easily and quickly removed or replaced as occasion may require.

.The form oi construction which I have shown and described I have found in use to be strong, eflicient, and cheap to construct, but do not wish to be understood as limiting my invention to such exact details of case; IVhen these parts are Gopies of this patent may be obtained for a proper length of my'inidust guard s clamped onto,

construction, as it is obvious that modifica' to said spring clamps and haying one free edge adapted to yieldingly engage the adjacent surface of the other door or closure. As an article of manufacture, a detachable dust guard for thesliding' glass doors or closures of show cases comprising; spring clamps adapted to be detachably secured to the edge of one oi such glass doors or 010- sures, astrip of felt haring one edge free said free edge adapted to yieldingly engage the suriace oi an adpicent slid ng door or closure, bars, between which one edge of said strip of felt and the bases of said spring clamps are securely fixed, and means for fixedly attaching said bars, said strips of felt and said spring clamps together.

In testimony whercofI hereunto afiix' my signature to the foregoing specification and claims.

EDMUND MORRIS.

five cents each, by addressing the Commissioner of Patents;

Washington, D. G. 

